All seven of these gears have been for rework over 3 times. He has tried to reslove the issues but still have problems. I am looking for some help on someone to rework my gear from him so the will work correctly. I have taken 4 set apart and fixed the bind problem and broken screws. I have one set of gear that take 18 second to come down. I did not purchase the sequeciner because I did not read on thier site of any issues. Horizon Hobby put out a service bulletion about issue with another complany product with the 2.4 system, but this was not my problem. On jets you can not have slow gear, if you move the rudder while the gear is coming down, the noise gear will lock and you have to recycle. On slow planes, the slow gear looks scale but is a problem on jets. The first two set of gear that I purchased over 2yrs ago were slow but never failed but only have 8 flights on them. I have contacted a mfg in China to look at some of the gear on the market and try to develop a gear that would work for the scale look and faster gear for the jets. They said it would be a few months before a proto type would be made. Some of the planes are over $20k and I can not take any chances. Thanks for your input.